Alkerion, how many monitors do you have? I have a reference-cooled 6950 (flashed to 6970) and as I have two monitors connected, the clocks are automatically raised at idle to 500mhz core, and 1375 (aka full speed) on the memory. Initially I thought the card was faulty but then noticed the AMD drivers dont allow the cards to enter their true 'idle' (250 core, 150 mem) mode due to having to drive a second monitor. If you have more than one monitor, try disabling all but one - I suspect you will soon see temperatures dropping! I've not found a reliable way to force the clocks down with more than one active monitor. edit: @Hilbert Hagedoorn: Please gently poke AMD to fix this in future GPU's - pretty sure its related to GDDR5. It's damn irritating for multi-monitor users!